1.10 block items in inventory

I have a block 2 properties (facing,style)   In the inventory i put the 4 styles using getSubBlocks.  It works, but i don't like the way the items look in the inventory.  I have tried creating a .json in the items asset

{
	"parent": "yabm:block/yb_M_stair_left_bot",
	    "textures": {
        "0": "blocks/planks_big_oak",
        "1": "yabm:blocks/stair",
        "2": "yabm:blocks/board_dark_oak_stain"
    },
	"display": {
	    "gui": {
	        "rotation": [ 16,328, 0 ],
	        "translation": [ 0.0, 0.0, 0.0 ],
	        "scale": [ 0.6, 0.6, 0.6 ]
	    },
	    "firstperson_righthand": {
	        "rotation": [ 0, 0, 0 ],
	        "translation": [ 0.0, 0.0, 0.0 ],
	        "scale": [ 0.7, 0.7, 0.7 ]
	    },
	    "firstperson_lefthand": {
	        "rotation": [ 0, 0, 0 ],
	        "translation": [ 0.0, 0.0, 0.0 ],
	        "scale": [ 1.0, 1.0, 1.0 ]
	    }
    }
}

Since the block model has no textures (its done in the blockstate) i had to include the textures in the item.json . But this will only work for the style with those textures, the other 3 styles would have different textures based on block state.  And even, then i found if i put textures that differ from the blockstate.json , it actual uses the those textures in the block the is set in the game.  Why would it use the textures  from the inventory item on the actual block?

thanks for any help.